Add-ons
Message Composition
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Mail Merge
Mass Mail and Personal Mail
58,460 users
Most Popular See all »
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True "Send Later" functionality to schedule the time for sending an email.66,304 users -
Switch the signature on/off or choose a new one from your predefined set...64,703 users -
Extension to mimic Outlook Express Stationery.
Allow you to use HTML files as templates for mail. Also allow custom template in replies or forwarded mail!30,722 users -
ThunderPEC semplifica la gestione della Posta Elettronica Certificata (PEC) e delle comunicazioni PCT e FatturaPA in Thunderbird.22,031 users -
SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.16,867 users
Top Rated See all »
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True "Send Later" functionality to schedule the time for sending an email.66,304 users
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SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.16,867 users
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Remembers the language you use with a person or group of people, and switches the spellchecker language automatically for you next time. You do not have to do it manually any more. It remembers and switches it for you.4,508 users -
As-you-type phonetic conversion of text from one alphabet to another, as well as transliteration/detransliteration of selected text anywhere within documents. Supports multiple languages and custom transliteration schemes.3,046 users -
Vietnamese-language input method editor (IME). Type diacritics directly into any Web page, Web app, or dialog box. Convenient, comprehensive, secure.
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Bộ gõ tiếng Việt cho phép đặt dấu trực tiếp vào bất kỳ trang Web, ứng dụng Web, hộp thoại.1,110 users
Recently Added See all »
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Easily send large attachments with Thunderbird without leaving your email!80 users -
Type some text in your mail's body, hit the asciidoctor button and transform your mail into a pretty html5 asciidoctor document. Font awesome and code highlighting are enabled.68 users -
Adiciona um botão para copiar o Assunto do email selecionado para a área de transferência
Add a button to copy the Subject line of the selected email to the clipboard29 users -
Default "Reply" functionality pays attention to "Reply-To" in original email198 users
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Add menu commands for replying to multiple messages at the same time.403 users -
Highlight multiple emails, right-click, then select "One-by-One Forward". This extension will allow you to forward the selected emails, one-by-one, to the recipients you specify using your choice of attachment handling.316 users
See all 105 extensions in Message Composition »
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